Ah, that explains it, thank you CD. Now I know who to turn to with my petrol related queries . The Gulf brand still seems to feature in motor racing sponsorship over here, but I can't remember the last time I saw a Gulf filling station.
Gulf Oil was bought by Chevron, another US oil company. My dad left after the buyout, and became President of another oil company (bringing some of his best people with him -- their futures were uncertain at Chevron).
The Gulf brand is now used by marketing companies. They are licensing the brand from Chevron. There are some relatively new Gulf gas stations in the US, but they are purely marketing companies. They have no refineries.
Gulf was famous for their racing sponsorships, especially of LeMans cars in the 1960s, first with Porsche, and most notably, Carrol Shelby's GT-40s that swept LeMans in 1966.
A select number of buyers can get a "Heritage Edition" Ford GT today. You have to be chosen by Ford to get one, and there are high expectations for those chosen. A 2019 Heritage Edition sold at auction in Scottsdale for $2.5-million.
CD